Sneezeweed Flower Top Mount Lemmon 7/16/16 Sneezeweed Flower Top Mount Lemmon 7/16/16 Sneezeweed Flower Sneezeweed Stem Top Mount Lemmon 7/16/16 Sneezeweed Leaves Trico Road, Top of Mount Lemmon 6/22/17 Sneezeweed Plant


Wildflowers of Southern Arizona


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Sneezeweed.
Hymenoxys hoopesii.
Aster (Asteraceae) family.

From early to late summer, showy Hymenoxys hoopesii plants are common, sometimes scattered in open woods, sometimes abundant in moist meadows from middle to high altitudes. They are always a pleasant sunny face to see along the trail. It is an erect perennial herb approaching a meter in maximum height. They are recognized by their mound of disk flowers; drooping, narrow, openly-spaced yellow/orange ray flowers; and deeply veined, almost white rib in the leaf. The smooth-edged leaves oval on the lower stem and lance-shaped toward the top. The inflorescence bears several flower heads on erect peduncles, each lined with a base of hairy, pointed phyllaries. The flower head has a center of disc florets fringed with many orange or yellow ray florets up to 3.5 centimeters long. The fruit is an achene with a pappus of scales.

Santa Catalina Mountains.
Sunset Trail
Location: On shoulder of dirt road leading from Sunset Trail trailhead near damp area.
7/9/15

Notes: Top of Mount Lemmon on Trico Road 6/22/17

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